Writing and drawing apparatus



Se t. 19 A.

P 13 27' J. G. HENDRlcKsoN WRITING AND DRAWING APPARATUS Filed Deo. 8,1922 Se t. 3 1927. A p 1 J. G. HENDRlcKsoN WRITING AND DRAWING APPARATUSFiled Dec. e, 1922 s sheetssnee'z zL u INV ENTOR.

we J M I ATTORNEYS V Sept. 13, 1927. 1,642,369

.1. G. I-HENDRICKSONV WRITING AND DRAWING APPARATUS Filed Dec. 8, 1922'5 Shee'os-SheetI 5 n. i gli..

.mmhI /ff y'7A TTORNEYS 1,642,369 Sept- 13; 1927- J, G. HENDRICKSONWRITING AND DRAWING APPARATUS Filed De@ 8. 1922 5 sheets-sneer 4 IN VENTOR.

A TTORNEYS sept. 13, 1927.

J'. G'. HENDRlcKsoN vWIRIT'ING AND DRAWING APPARATUS Filed Deo. 8, 19225 Sheetsvsheet 5 INVENTOR.`

' s /eae ATToRNEYb Patented Slept. A13, 19427.

" UNI-,TED :STATES JAMES G. HENDRICKSON, F BAYONNE, JERSEY.

WRITINGAND DRAWING APPARATUS.

Application fiied'necember 8,. 1922. seriai No. y605,629.

i kMy present invention relates to a mechanism t'or reproducingwritingsor drawings, andparticularly one in which several lines ofwriting Qrthelike 'can be reproduced automatically.

`In the'drawngs Fig. 1 is a more or less diagrammaticl plan view of' anillustrative embodiment ot my invention; F 1A is a. development ofaportion of a cam cylinder shown in Fig. 1v withtypical forms` vot" cam`grooves' therein; Fig. y2 is a section-on the line 2-2of Figfl on asomewhat larger scale; Fig. 3 is a tview cfa portion of Fig.

' 2 looking from the right thereof; Fig.` 4 is a detail of Fig. 3;"Fig.5A `is an enlarged View of the cam'arrangement shown at the right ofFig. 1; Gis an enlarged elevation of some of. the parts shown in Fig. 1;Fig. 7 is aview of aportion offFig. 1 looking from the left thereof;Fig. 8 is a plan view of Fig. 7; Figs. 9, 10 and 11 are elevations ofportions of Fig. 1 on a larger scale, eachv showing a separate portion.of the mechanism so astomake theconstruction clearer; Fig. 12 is a vdiagram of thefcams, Fig. 13 is a plan andFig.- 14 an elevation of amodification. l

Likey reference characters Vindicate like parts in the several views.

In the illustrative apparatus, I have shown a machine designed so that apen', pencil or other marking devicer will be moved across awriting-receiving support 'in a predetermined path as to write a. lineof writing and, when this line is completed, the machine willautomatically bring the pen back .to original position, shift thevwriting-receiving material tonpresent a clean surface forjthenext linelandthereupon automatically write a new line. rIhis is repeated untilthey end of the last line. when all ofthe 'mechanism is restored to` itsoriginal position, ready to repeat the operation aftera new sheet ofpaper or the like has been substituted for the one already written on.

' As the marking device,.l have shown a fountain pen 10, though itwillbe understood that a kpencil or anyother similar device may beusedand that by the term pen as used in thev claims, I` mean any other`similar markingdevice. Thepenl() (seeFigs. 8 and 4l) is held ina pairoff spring clips 11 and 112 at the normal writing angle. these clipsbeing` connected `to .acradle 13 pivoed at 14 in brackets 15 which. areconnected to a sw-inging member l16,'pivoted at 17 on a slide 181 thisslide being supported for longiy tudinal movement between rollers 19;'With this construction, it willv be seen that* by 'a longitudinal motionofslide l18 vand a swing ing of member 16', the point of pen 10- may bemade tok follow any path necessary for writing or drawing, and that, byturning cradle 13 on pivot 14, thel penpoint maybe 'tised orfloweredbetween eaclrfword or thev 1 ze. Y

' These motions are Vgiven to the several parts by means ofproperlydesigned ycams. l i

In: the illustrative form, ythe operating cams areformed as grooves: ina cam cylinder 20 winch, in the form illustrated, may be a, shell`having a conical bore and connected to a con-- ical member 21 havingcapped bearings22 and 23; in a slide 24 supported on slideways 25, 26.Cam cylinder. 20 is rotated through spur gears 27, 28 by means to bedescribed more fully hereinafter;

Fig. 1A shows thefcylindrical surface of a portion of the ,cam 20 with aset of typical cam groovesv thereii'nthese grooves, in the formillustrated, being respectfully 46a, '32a and 35, the grooveli" for thecomplete circumference of the camv 20 being made up of the two parts Aand X the groove 32a bein made up of the part B vand the part Y, and thegroove abeing made up of the part C and the partV Z, the parts A, B andC being what maybe termed the active portionsof the cam groove and theparts X, YV and Z, the part of the groove which enables the cam rollersandthe lcam 20 to vmove relatively longitudinally of the cam axis tobring the rollers to further active portions of the respective grooves,as will be' pointed. out more in detail hereinafter.

Connected to the slide 18 through alink 29 is a cam lever 30 pivoted at31 on the frame of the Vmachine and carrying a'cam .urged to. the leftof Fig. 1 by a spring, 4suc as 181', connected to an extension 182 atthe I end of lever 30. Asjshown in the portion B of the cam groove 32 ofFig. 1A, the roller 32 vand with it the slide 18 is'moved by the groove,32a tothe rightof Fig. l, but this motion will'` not be a continuous onebut even maybe at times a motion 'backward or to the titl lett in Fig.l. as, At'or inetiant'te. in forming the loop or the letter (3. Suchreverse movement will he relatively Slight olf eourse, and theundnlationev in the port B of the eain groove 32 will give the desiredhorizontal components ot the letters; while the general motion oil thepen to the right in Fig. l will he given h v the large swing` producedby the helieal Shape ot the liiortion l5 of groove 32:1.

Meinher 1G is eonneeted through a lint: 'll with :i hell brani( 3learrviinil a rain roll er 35, the bell eranlr being pivoted at 3G to theniaehine 'traine and urged lov a spring? Sflteiiding to owing; helleranli. il eloehV- wise. Roller 25:3 enggugee in the `e'roove $55 ot'earn itt) to give the vertical componente oit the, writing. lly reaeonot the linlr eonneetion between the nieinher lo and the end o the lever8l, the lraivel of the .nieinher ltl with the Slide 18 will notmaterially alleet the position o'l the roller 35. .llenre the portion(il ot `ejroove 35 will merely have undulatione in it to give thedenired up and down or vertical etmiponrnt1 to the pen and the. portionC will, thereltne. he. in general, a eirenlar groove hut withundulatione to give the deeired vertieal eoniponente.

.i On ineinher llt (eee Fin. il) ie a vertieal eha'tt 3T having)- nhearingv in nieinher lo and :than in a hraelret i8 seeured to :saidnieniher. 'lo this shalt ie eonneeted a lever lll) ha vine` one endengaging a slot in a lever Ll-tl eonneeted to eratlle lil. To shalt 2l?is also ronneetetl a lever fl-l which, in turn. is eonneeted through alinl; with a einn lever lll pivoted at :l-#lon the niaehine traine.Prelier-.lhlv l provide :i spring.;- l5 hetween the ond ot eani lever-l3 and slide 'ith :so that pen ttl its held down on `the paper with ayielding pressure. lt will he noted that, ae lever l-3 nieves to theright ot Fig. l, this niotjion is traneinitted through linl: 42, andlevers 1li and. 39 to cradle 13, to tiring the pen down on the paper. asIehown in Fie. 3. lrl'etion ol" lever el?) in the oppoeite diret'- tionwill litt the pen. Gann lever eto is previded with a eani roller or studt6 whit-l1 engages with the eain eroove el-G in the ovlinder Q0. thisgroove heine' arranged so that it nete on the right .eide of the roller.to lil't the pen lll. the other eide oitI the groove heinp; eut :lwajvso that Spring' l5 opemteffy to lower the pen ltl. This rain groove isar ranged so that. it tleeired. the pen will he held in either one orthe other position as the pen is carried to the right in Fie'. l. therain ,efroove being provided with the neeesserv hunips and depressionsto reune the pen to raise or lower :it the end or the heeinning ol?Sueeessive words. Since the pen is heine enrried to the riefht in Fig'.'1. hv the slide t8 through the action of the portion l of the eanigroove 32 and since the cani lever ie eonneeted throne-h varioue linkswith this` pen, it `tollowe that the roller Lttl will he. earried inlgeneral over the seine lind oi path :is that ot the roller 52, Se thatthe portion A. ot' the groove fttluwill he, in reneral, parallel to theportion l5 of the groove 23:2A It will, however, he provided withundnlatione to raise and permit the pen to he lowered ne it moving` tothe right in Fig;a L the portion A being made wider than its roller toproduce the entm nwav portion referred to nhove.

VWith the urrangexnent so 'tar tleserilied, the writing.;h will heeonnnt-.ineed with the rollere ith l2 and lo respectively in the eanigroove portions; A.. ll and (l at the left ol Figi'. l. The earn Qt)will begin to rotate and the portion I3 will carry the pen to the rightin Fie'. l und, at the sinne time, give the d -iired horizontaleoinlionents to the letter# in coordination with the other niove nienteol the pen. Similarly the undulathan1 in the portion tl will `rive thedesired vertieal inotiona to the pen to produee the vertiealronupoirente` ol the writiiitg. 'lhe untlnhit'ione in the portion A.will rame the pen at the end ol eaeh letter or :it any other desiredtime ae the writing;r progresses.

ll'hen the earns have reaehed pointe in the respertive grooves whieh are:it the hottoni ol llie. 1^. the end of the line to he written han heenreaehed and il the machine in deeiened l'or writing only one line, thenthe tarts; eouhl he restored to their original positions and the linerepeated. Ae deeerihed hereinafter. however. the. inaehine in desir-nedto write a seriea ot dilt'orent linee` and the ineenl tv v which this`nnrv he done will now he described.

ln the 'torni illustrated. the writingieeeiving nnpport is a tahle 47Supported on the traine ol the machine and hnvingr. zldjaeent ite` top,a pair oi 'feed rollers fl-8 and L1:9 `reared together through gears5t), 5l. roller 4S having :i 'leed .ratchet 52 arranged to he operatedin a well-known manner h v a pnwl 53 on e pawl lever 54: Swingingraround the eenter ot roller t8 (see Fig. lll-l,

lllhen the end ot the first line ot writing' has; been reaehed. a Secondline inav then he written with inv apparatus. and to that end. thefollowing; int-iehaniein is used:

During.' the writing` ot the. first lintn eviinder '2O is turned throuehone rotation hv nears QT and the latter ot whieh ie mounted on a shafto5 provided with a worin wheel 5G driven h v a worin 5T on a shalt 5S.Shaft 58 reeeivee` its` power Atliroinrh hevel retire 59 and GO thelatter heine' eonneetetl to a tilriving; shalt Gl reA eeivine' powerthronpjh niiter gears 62 ond @Il the latter being eonneeted to a mainpower Shaft Gl which mayT reeeive its; niotion troni env Suitable soureeoi power. eneh as an eleetrie inotor.` Shaftl 55 extends heneath slideejear 28 being splint-3d to this Hin yYokes .65 and '65 extend tronitheshafty ot' cam cylinder to` either side of gear 28 tov cause gear 28rtofslid'ealongshaft 55 When cam, cylinder 20"'is moved longitudinally,as will be, explained hereinafter. n X' Shaft 58 lis mounted in abearingloose ly pivotedon `shan-.61 to permit the oppo-V site end to drop aisnflicient distance to per-l init the teeth of worm '57 to bedisengaged from Worm `Wheel 56. This opposite end oi' y sha-tt 58extends through a, slotted bracket 67, the vshaft. resting fon ,a cam68,

Ashovnf:best inFig. 9. Cam 68^is slidable longitudinally sothat it.' maybe moved to the left Lof Fig. 9 (in Which position the high 'part of thecam is holding shaft V58 up so k that Worm 57'isy in'mesh With Worm;lWheel V56.) ltoperinit shaft 58'to drop into a; depression 69 to permitWorm ,57, to drop ont. of engagement with Worin lWheel 56. n

The longitudinal `motion of cam 68 is givenfby; Ya lever' 70 on a shaft71 (see Fig. l)v in'brackets 72 on the frame ot the machine,- the shatt71 having a 'lever' 7 8 connected by linksr 7landv'75 to a lever 76pivotedat 77 onthe'trame of the machine. The tree end of, lever 76'projects Vinthev path ot a pin 78 on `the bottom of slide 18, so thatas slide 18'reaches its veXtreme position to Y the 'right ot Figli, pinv78 contacts with the ,end of lever'76 to rotate shaft 7l to move cam 6 8to cause Worm 57`to drop out ofl mesh and thus Ystofpthe rotation otgear 27 and 'of canicylinder 20, thus bringing to rest all otfthe partscontrolling the motion Cyl 0; the pento the right inV Fig. 1.

,y In order to Writethe next line, it is necessary tobring'a second setotcam grooves into operativepositionin relation to cam rollers 32, 35and 46 and also'to move the slide'1'8 and its associated parts to theposition'.sl'iown in F ig. 1. Onslid'e 24 is'arack 79`n'ies'hing withgear 80 on a shaft 81 hatvy ing a miter gear 82 meshing with a niitergearv 83 v`on a shaft 84 carried in suitable `bea-rings on the machinetrame. On the opposite end of shaft 8e isa miter gear 85 meshing with amiter gear 86V on a shaft 87, which shattis provided with fa miter gear88 meshing with a miter gearf89 on the shaft 90. The shaft 90v hasfastened to. it a Worm vWheel 91 meshing with a Worm 92 on lf-hat't98(see Fig. 11).

to be raised and lowered by a cam 91longi tudinally fslidable andoperated by a lever '95 and link 95, leverl 95 being connected toV ashalt 96 supported in bearings 97 and having a lever 98 on its oppositeend, which l'efver is connected throughlinks l99 and 100 Shaft 98 issimilarr 1constructionto shaft 58 and is arranged Vshortly after pin 78contacts Withlever 76,

pin 108 contacts Withlever 101 to turn shaft- 96 to move cam 94 to raiseshaft 93 :trom` the position shown in Fig. 11'into mesh with 'worinWheel 91 to start the shaft 90 rotating and thus to rotate through theconnected shait and gearing, slide 24. 0

' This longitudinal motion otslide 24ipret-v erably Ytakes place Whilecam cylinder 20 is not rotating and, by reason of the engagement`:otfthe 'cam' grooves With roller-S332, 35 and 46, slide 18 and all ofthe connected parts are moved to the leftA of F ig. 1 into the positionshown in that figure, bringing the pen 10 into itsiinitial position. Asslide 18nears the positiony shown in Fig. v1, a. pin 10i on slide 18cont-acts with a lever 105 pivoted at 106 and connected through a link107 with lever 101 to move the latter backgear 80, to move vvva'rd, andthus return shaft 96 and cam 94 motion being Apermitted by the freerotation vot the cam 20 which at that ytinieis disconnected :troni itsdriving gearing. In other Wordsythe cam 20 at thisy time acts like ascrew moving ina fixed' nut, the

equivalent ot the fixed .nut bein'glthe en# gagement of the ycam rollersWith the grooves X, Y and Z. l' n 'The net result of this motion' of thecani 20 to thelett of Fig. 1 is' to restore thel levers 48, 80A and 38'vWith their connected parts to the Vposition shoWnin Fig. 1 and with therespective cam rollers at the begin! ningof new portions likepthe partsA, B and'L C of the cam grooves 1162.32"1 and 35a,- ready to' Write thesecond line as4 soon as the cam 'driving gearing is again throivn intooperation. It will be understood, ot course, thatY the active portionsof the respective cam grooves will have their undulations designed tocorrespond to the writing desired inthe second line.

The new line of writing is begun bya pin 108 on slide 18 contacting withthe end of a member 109 connected tothe upper end ofl a lever 110pivoted at 111 and connected by 'a link 112 With lever 7 6.' Contact ofpin 108 With member 109 swings lever 76 to its initialposition to throwWorm 57 into mesh aroller 115 which normally rests against a portion otslideway 25 under pressure of a spring (not shown), so that normallymember 109`is held in the path of pin 108.

llo

Preferably lA provide it'or an antoInat-ie Shifting ol the p11 per b vrotating paper rollen; lo, 19. 'lo thin end. l connect ratchet lever 54through a linh llo, bell eranh 1.1"? and linli Ile with a lever lll)pivoted at ldd. no that.y it' lever .115) in 111oved to the lett ot Fig.h ralehet nl will he turned to nuove the paper the desired diet-1111erxbetween the lines ot writing. (ln alide its l provide a pin 19t tocontact with the Vtree end ol' lever llt), thin` ierer prel'erabi)Y heilI.; arranged with 11 latrh i152 pivoted at lad and .nor Inallji' held inthe poeitiou beet shown in Fig. 123 by a oprit 11211. no that as pin112.1. xnovee lo the right ol: Fig. l. latch 122 will be turned on itepirot to allow pin '121 to pase, and then7 when wilde le? in moving tothe lett, to bring about an engagement beAA tween lateh 111;! and pinhit to .rotate lever lli), and thus more the paper.

The operations thua deserihed a re 1'e peated lfor 111; inany linen olfwriting as are desired and as there are sets ol rame` on 1111111oylinder Bti. .lt will he underetood that the eain grooves: are readilyformed by moving the pen l over the desired line oi writing, atthelannue time, nun-hing on 1i plain rotating cylinder like rain evlinderQd. the paths o1I ealn roller 52,

and lo and then cutting the ouin groovel to rorrespond to the positionelthuis` outlined.

.lt in deairahle to provide u1erhanis1n which will reaiore all olf theparte ot the nnufhine to initial poeition at the end olf :111111y givennumber o't lines7 so as to be ready to repeat the writing. To this end,l. tirst provide means by which alter the predetermined nu111he1 otlinee` have been written, 1:11111 eylinder i2() will be reatored lo itsinitial position. an shown in Fig. l. O11 slide 2l and adjuslablyeonneeted thereto is a eain 125 whieh. as slide El mover; to the lett 1nFig. l, will move roller Allo` to swing ineinber Chill out ol the pathoit pin 10S, so that, as slide 1S being restored to its initial positionalter the last line of writing has been rolnpletorh there will be nomotion ol lever 7G to throw gear 2T into operation to rot-ate raincylinder E20. Pin lO-l, however. will opi-1111111i at thin time to latopthe motion ol" gear Si) which in moving slide :il to the lel't olA Fig.il. fldjusiably mounted on slide Q4. ia a bracket. .12o having a. pin12T arranged to routart with the end ot 11v lever 12S 11ivoted nl 126;)on the 't1-aine ol the machine and connected by linlin lll() and .i251with a lever 11.391 on :1 ahalt i318 earlving a .lever 131i oonneetedthrough :1 linl; 1235 with a eliding ea 1n l-SG (Fi a. i and l). ThisCain is in the position shown in Fig.

normally held 1l by a spring 13T', at which time, a sha'lft 13S -arryinga worin 139, is dropped that worm 13S) is out ot' Inesh with a worlnwheel 1&0 on a shaft lll receiving motion through a` gear 142 meshingwith gear on shaft 6l. Then lever 1128 is moved b v pin 127, shalt i233is rotated to move earn IBG to the right ol' .["ig: ll to raise worm13S) into Ineeh with worin wheel il() to start the rotation ol shaltlill which` through gears hb2 and i-lfl, :starte the rotation ol' a rain:shaft little mounted in enit-able bearingl ou the tarne. :there 1:11111L-SU ia a pawl li' arranged to engage in a notch i315 in 1:11111 lllj tohold the 111111111 in the poi-:itionA to which il. le moved by piu ifi',eo that ram ehailt lll will eontinue to rotate alter pin 12'( 'inn1oving to the right o lf Fig. 1..

'the tiret part ol the rotation ol rain .ll li'lta 1:11111 rollers; 32,llo and fit1' fronr their rerpeetive grooves, 11nd my preferred kkmenttor doing this in shown beet .in o, "i and tl. '.l`he arra11gen1ent for1 of the 1.111111 roilrrn if; the naine, so that a des'irrilgition olfone o l the111 will be snllieient. 1;:111'1 roller 52 in mounted on theend Olli 11 willi-:dlr movable rod .tlalidable through 1:1111 lever rio:1nd :1 braeliet trl-(5 supported thereon und no1-mall,Y held downwardby a` lli'. 1%. eollar l-it is provided with 1-ll roiineriei lo :1`lorlied hell (frank 1111 pivoled at lo) on a hraoltet ,1.52 on 1h11 ramlever Ill). tl`he opposite end ot bell eranlr. iill in ronnerled to a`raeli bar 153 having reel; teeth li-lengaging with a segment luf111ou111`e l eoneenlrii.: with the pivot cenier Ill ut the 1111111.lever lll). rl`l1e Segment 155 ha4 at? aehed to it a lover liit. thethree levers ili being ifon11erled through suitable linke l5? with alink 15S, whichV7 in turn, is oonnoeled lo a eaiu lever 1F15) rarryiug aealu roller lo() engaging with ay (1:1111 1.6.1,. The lirst part o1 therotation o eani lol, moves; all o't lever@ 15G lo lii't rain rollers252, 35 and lo out ol' their reaportive grooves through ihe motion ol'the several parte` described. [ly pivoting ref g'iuenlav i515 on thepivot eenters ol the eaiu levers, Athe latter may turn Ain the normaloperation ot writing a .line without alleetiug the poaition oi therollers in the eain groeven.

-in Soon as the cani rollers` are out of the e11111 grooreslz, dido -l-111:1 v he moved to the right ot lfig. l. and thin in aeeomplished byreversing the dirertion otu1otion ol.l gear 80. (,)11 rain nhalt ll-,lina 1:11111 162 cooperating with av ram roller lo?) ou a rain 4lever 164ipiv oled on a ehal't itin extending through brac-le etl lot', andronneelrd through a link 1.67 with 11 elii'liiugl 1'11111 llt providedwith a y pring lill to inove it to the .le'llt ot Fig. l0. tain looextend` beneath a ehaitt lil), similar to shaft 58, having a worin 171adapted to nieeh with a worin wheel i712 on a Shaft 173 having a gearlT-lengaging with the gear 88. Flhalft lil) receives its; motion troni agear lin meshing with a gear liti on the shaft (il. lt will be notedthat gear 17111 rotates shaft 8T in a direction opposite the rotationgiven that shalt by gear 89, so that when gear 174 is rotated, gear`80is turned so as to move 56 into operation, and thisis accomplished bymoving slide cam 68 by means of a cam' 177 on the cam shaft 144, thiscam cooperatiiig with `a roller 178 on a cam lever 179 pivoted on shaft165 and connected by a link 181 with lever `70 onsliaft 71. The rotationof cam'177, therefore, will move cam 68 to lift shaft 58 to start therotation of cam cylinder 20. f

All of the partsy nowv having been restored to initial position and themachiney started on a repetition of the writing, cani shaft 144 isbrought to rest by a cam 182 on cam shaft 144, this camI contacting withan arm 183 on pawl 137 to lift the pawl out of notch 138 to permitspring 137 to restore cam 136 to the position shown in Fig. 11, withworm 139 disengaged from worin wheel 140.

The arrangement which I have just described is adapted to write a singleletter or the like. If desired, it may be arranged to write a pluralityof letters, and sucli modification is shown in Figs. 13 and 14, arrangedto write three letters or the like, simultaneously. In such anarrangement, slide y18 has a supplemental slide 218 connected by crossties 201 to causeslide 218 to move with slide 18,1notioii being given toslide 18 through cam lever 30 as in the single letter writingarrangement. Member 16 ,is duplicated at .216, 216, all of these membersbeing connected through links 217, so' that the motion i Y given tomember 16 by link 33 vwill be transmitted to members 216, 216. Oneach ofmembers 216,as on member 16, is acradle similar to that heretoforedescribed, carrying apen 10, each pen being arranged tok cooperate witha ywriting-receivingtable, each providedwith a pair of rollers 48,149`and operated by ratclietsr in the manner heretofore described, each ofthese ratchets being connected through bar 116 with ratchet levers 53.Each of these cradles is m'oved by the same mechanism heretoforedescribed,k -a frame 220 connecting'all' of levers 41 so as be writtenwith the 'same arrangement and 'scribed' for a single letter.

inthe samel manner as that heretofore demy apparatus as While I havedescribed it would be used fory writing dierent 'lines vThe new line ofwritiiia letterorrthe like, it will be obvious that instead of Writing,the reproduction maybe of a drawingv or the like which is to be repeatedin 4separate steps.

VIt will also be understood on ther camA cylinder 26, thesesets maybearranged in any other suitable manner soas to be brought. into *and outof cooperative relation with the respective cam rollers. will also beunderstood that certain features of my invention may be usedindependently of other features. F or instance, if desired, the camshaft 144 may be dispensed with, so that the parts may-be returned t0normal position by thevoperator.

' predeterminedl path to write the desired words in a line, meanstosliift the cylinder longitudinally at the completion of each line ofwriting to bring a different set of cam grooves into operative position,and means to rotate the cylinder between shifts.

2. In a writing or drawing apparatus, a pen, a support for the pen,means to move said support to raise and lower the pen from thewriting-receiving surface, means to move said support vertically to theline of writing, means to move said support longitudinally of the lineof writing, a cam cylinder having separate grooves to actuate each ofsaid moving means, means to rotate the cylinder while it is stationaryvasto longitudinal motion to cause the'pen to write a line of writinitialposition.

3. yIn a writing or drawing apparatus, a pen, asupport for the pen,means to move said support to raise and lower the pen from Y Y that,while 1 preferably I forni the different sets of cams 1While I havevshown a preferred embodiment of my inventhe writing-receiving surface,means to move said support vertically to the line of writing,

means to move said support longitudinally of the line of writing,"a camcylinder having separate grooves to actuate each of said moving means,and each of said moving means including la cani roller traveling in'itsrespective one of said grooves, means torotate the cylinder while it isstationary as to` 110 ing,'and,means to shift the cylinderlongitudinally when the lineof writing' is completed, whereby the penVis returned to itsV 4l. lo :i willing oili-ziwiui appui-alos, :i pou,mouw lo Support uml move itlio pen loou gitucliimlly ol" :mil voiic'ully'o dio line, of writing: :mil fo lili :mijl lowm lli@ |1011 from theWifitinyiecei'\'ing envialo@ will moans i11- cludim :i com Cylimlm'lmvinp; :i plurality olf Solo of @um f1-omino llioi'oin und :1 com iollmin vzmh groove of." n set, euch Sel; being adapt @il lo mov@ the ponover n` predetermined' mili lo write tho desimd Words in n` line, moansto shift the cylinder lfmgitmlinully :it illo oompleliinm of ozwli linool" wril'iug 'while tho mim i'ollol' :1ro in tlio grooves lo bring :i`fliilloiont sot olf cmu grooves inl'o opoi'zllive position, liiozms lol'olizllo tlw` (cylinilei' between, lougiltuilimil slrill's, :unl moanslo li't; the mm1 rollers li'om tho grooves :mil lo return lio cylindvi'lo initial position when (lio loot lino of Writing has; boon.complete/Cl.

,lL/UNIES (l. 'HENDRICKSON

